I'm an absolute demon at the game, but when it comes to clambering up buildings; leaping between suspended beams, and driving off roof tops, I'm more likely to break my neck than anything; unlike this chap, who busts out some truly awesome Altair-esque moves in this fantastically-shot video.
Hats off to this chap -- he sure has the moves, but I wonder whether he's any good at assassinating people with a hidden blade. Actually, scrub that, I'm sure he's amazing; after all, he hasn't been caught. Yet. [YouTube via Kotaku]